Confirm alert to appear when field value changes

[NathanHaywood]

Hi,

I am trying to write an onSubmit Client Script so that when a field value is changed and the form is submitted, a confirm alert is returned which will state 'Expected Closure Date has changed. Approval must be attached once this has been updated.'

The script I have so far is below:

function onSubmit() {

var u_risk_close_date=g_form.getValue('u_risk_close_date');
if(u_risk_close_date.modified){
return confirm("Expected Closure Date has changed. Approval must be attached once this has been updated.");
}
}

Many thanks in advance.

[Manmohan K · Accepted solution]

Hi @NathanHaywood ,

Please try below on submit client script

function onSubmit() {
  var risk_close_date = g_form.getControl('u_risk_close_date'); //Get the field control
 
  //See if the 'changed' attribute on field is true
  if(risk_close_date.changed){
    return confirm("Expected Closure Date has changed. Approval must be attached once this has been updated");
  }
}

[NathanHaywood]

Hello @Manmohan K 

Thank you for your reply.

I have made the changes but when going back to the form and amending the u_risk_close_date field, I get this error in red at the top of the page:

Error MessageonSubmit script error: TypeError: g_form.Control is not a function:
function () { [native code] }

I have copied your script exactly, see below:

function onSubmit() {

var u_risk_close_date = g_form.Control('u_risk_close_date'); //Get the field control

//See if the 'changed' attribute of field is true
if(u_risk_close_date.changed){
return confirm("Expected Closure Date has changed. Approval must be attached once this has been updated.");
}
}

Thanks again.

[Manmohan K]

@NathanHaywood 

Correct this line, 

var risk_close_date = g_form.getControl('u_risk_close_date'); //Get the field control

You wrote var u_risk_close_date = g_form.Control('u_risk_close_date'); //missing get before control

[NathanHaywood]

Ah, I wasn't paying enough attention clearly. Thank @Manmohan K that's done it!